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JBO Plug Gauge - Metric (STI) Heli Coil Gauge - Right Hand - 6H - M4 x 0.7 - Calibrated (DAkkS Calibration)

SKU:JBO-512682

The JBO Plug Gauge - Metric (STI) Heli Coil Gauge - Right Hand - 6H - M4 x 0.7 - Calibrated (DAkkS Calibration) is a precision measurement tool designed to verify metric Screw Thread Inserts (STI... Read more ↓
Thread FormMetric (STI)
SizeM4
Pitch0.7
Gauge TypePlug Gauge (D/E)
Thread DirectionRight Hand
Tolerance6H
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£94.87
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5 days estimated lead time — subject to availability
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The JBO Plug Gauge - Metric (STI) Heli Coil Gauge - Right Hand - 6H - M4 x 0.7 - Calibrated (DAkkS Calibration) is a precision measurement tool designed to verify metric Screw Thread Inserts (STIs). Built for engineers, inspectors, and shop floor technicians across manufacturing, automotive, and aerospace environments, it delivers quick, reliable go/no-go checks that confirm inserts meet exact M4 x 0.7 dimensions and STI standards.

Manufactured and assessed in accordance with ANSI/ASME thread system standards, this plug gauge is purpose-built for metric STI inserts. Its right-hand design, 6H tolerance, and M4 x 0.7 specification support consistent, repeatable measurements, while the DAkkS-calibrated certification provides traceable accuracy for audits and quality control programs.

  • Metric STI compatibility with M4 x 0.7: Precisely sized for the M4 x 0.7 screw thread inserts, enabling fast, reliable pass/fail checks on inserts in busy production environments.
  • DAkkS-calibrated with ANSI/ASME alignment: Includes traceable calibration and a right-hand 6H geometry to ensure consistent readings across multiple setups and operators.
  • Rugged, user-friendly construction: Knurled, durable body and smooth engagement points provide confident handling and long service life in demanding settings.

This plug gauge helps you accelerate quality control, reduce rework, and maintain consistent results across shifts. With DAkkS calibration and ANSI/ASME-aligned geometry, you can trust its readings for audits and daily inspections, ensuring your STI inserts meet exact specifications every time.

Thread Form Metric (STI)
Size M4
Pitch 0.7
Gauge Type Plug Gauge (D/E)
Thread Direction Right Hand
Tolerance 6H
Calibration DAkkS Calibration Cert

What time are Protool open?

We are open Monday to Friday between 8:30am and 5pm.

Do you offer Free Next Day delivery?

Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.

We also offer the following:

  • Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
  • DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
  • Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
  • DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.

For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.

*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.

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Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
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Full Range: JBO Metric Plug (STI) Heli Coil Gauges - Right Hand - Calibrated (DAkkS Calibration)

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